Mini Gastric Bypass

The Mini
Gastric Bypass (MGB)

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Mini Gastric Bypass

The Mini Gastric Bypass (MGB) is a modified version of classical Roux-en-Y gastric bypass. It was developed by Dr Robert Rutledge in the 1990s. In the MGB, stomach is first divided into a small, narrow upper pouch and a large lower pouch. The small, narrow upper gastric pouch is created along lesser curvature of stomach excluding the antrum and the fundus. Then it is anastomosed with small bowel about 180-200cm from the beginning of jejunum. Thus the large lower stomach pouch and proximal intestines is excluded from the digestive process.

MGB is a simpler, safer surgery compared to Roux-en-Y gastric bypass with low risk but effective in getting and maintaining significant weight loss and excellent resolution of co-morbidities. It is also reversible. It is done laparoscopically. MGB is both restrictive and malabsorptive procedure. This procedure reduces the size of the stomach, restricting the amount of food intake. It also reduces food absorption by bypassing proximal intestine.

Advantages of MGB compared to Roux-en-Y gastric bypass

• Technically simpler and relatively shorter operating time.

• Only one anastomosis required

• Lesser re-routing and manipulation of intestines

• Lesser complication rates, hence relatively safer

• Similar results regarding weight loss and resolution of co-morbidities.

 

Disadvantages of MGB

• Acid reflux can be troublesome in some patients.

• Dumping syndrome.

• More data needed on long-term efficacy.

• Life long nutritional supplementation required.

 

Post-operative recovery

MGB patients have recovery similar to other bariatric procedures. Post-operative pain, hospital stay, diet, time required to return to work etc. are similar to Sleeve gastrectomy and Roux-en-Y gastric bypass.

Complications

Minor complications include wound infections, port site hernias etc., whereas, major complications can be internal bleeding, staple line leaks, stricture, pulmonary embolism etc.

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Frequently Asked Questions

Obesity is determined by having a body mass index (BMI) of 25 or higher. It means having excess body fat, which can lead to various health issues.
Weight loss begins right after the surgery. Typically, patients who have undergone bariatric surgery can resume work after one week.
The main reasons for obesity are unhealthy eating habits, lack of physical activity, genetic factors, hormonal imbalances and certain medications.
No, when it comes to weight loss, there are no shortcuts or quick fixes. It's a lifelong commitment that requires consistent effort and a balanced approach.
After bariatric surgery, individuals can lose between 40 and 60 kg or even up to 70 kg, depending on their initial weight. Weight loss begins immediately after the surgery.
The selection of exercise plays a role in weight reduction. Both aerobic and anaerobic exercises are beneficial. Consistency and frequency of exercise are important for weight loss. Some individuals may struggle with maintaining their exercise routine, so it's important to balance calorie intake and expenditure.
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